The VK970 is a versatile, quick response sprinkler and flexible hose assembly, featuring a pre-calibrated K-factor of 5.6 (80.6 metric) and cULus listing for installations in accordance with NFPA 13 and 13R. It is designed so that no friction loss is required to be calculated through the length of the hose, allowing for easier replacement of existing hard-piped arm-overs. Available in various hose lengths, finishes and temperature ratings, the VK970 offers versatile solutions for commercial construction projects.